* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #094897 0%, #084186 100%);
    position: relative;
}

/* 导航栏 */
.navbar {
    position: sticky;
    top: 0;
    background: #0A0F1E;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 15px 20px;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.nav-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.nav-btn:hover {
    background: #764ba2;
    transform: translateY(-2px);
    overflow: hidden;
    outline: none;
}

.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255,255,255,0.3);
    z-index: 1001;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #37FF87, #E53935);
    width: 0%;
    transition: width 0.3s;
}

.container {
    max-width: 1080px;
    margin: 0 auto;   
}

/* 幻灯片区域 */
.slide-section {
    background: #003265;
    padding: 50px;
    /* margin-bottom: 10px; */
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    scroll-margin-top: 80px;
    /* background-image: url(../img/image_d7c03323f3.jpg); */
    background-size: 100% 100%;
    background-position: center;

}

/* .slide-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
} */

.slide-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    height: 0;
    overflow: hidden;
    opacity: 0;
}

.slide-number {    
    font-size: 14px;
    color: #667eea;
    font-weight: bold;
    background: rgba(255,255,255,0.1);
    padding: 5px 15px;
    border-radius: 20px;   
}

.slide-link {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background 0.3s;
}

.slide-link:hover {
    background: #f0f0ff;
}

.slide-content {
    position: relative;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
}

.text-container {
    width: 100%;
}


/* 文本样式 */
.text-shape {
    margin-bottom: 20px;
    word-wrap: break-word;
}

.title-text {
    font-size: 42px;
    font-weight: bold;
    color: #00FFFF;
    margin-bottom: 30px;
    line-height: 1.3;
    text-align: center;
}

.sub-title-text span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.3);
    font-weight: normal;
}


.subtitle-text {
    font-size: 28px;
    font-weight: 600;
    color: #34495e;
    margin-bottom: 25px;
    line-height: 1.4;
}
.secondtitle-text{
    font-size: 16px;
    color: #FFF;
    margin-top: 20px;
}
.itemtitle-text{
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

.body-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 15px;
}

.small-text {
    font-size: 14px;
    color: #8b8b8b;
    line-height: 1.6;
}
.des-text{
    font-size: 16px;
    color: #FFF;
}


/* 图片样式 */
.poster-shape{
    width: 100%;
}
.image-shape {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.image-icon {
    width: 36px;
    height: 36px;
    margin: 20px 0;
    filter: drop-shadow(0 2px 5px rgba(0,0,0,0.1));
    margin: 0 10px 0 0;
}

.image-filter {
    filter: brightness(10%);
    transition: filter 0.3s;
}

/* 表格样式 */
.table-shape {
    overflow-x: auto;
    margin: 20px 0;
}

.table-shape table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.table-shape td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    background: #057e03;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:active {
    background: #006629;
    transform: scale(1.1);
    box-shadow: none;
    outline: none;
}

/* 目录导航 */
.toc {
    background: #0A0F1E;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.toc h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 28px;
}

.toc-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    list-style: none;
}

.toc-list li {
    padding: 10px;
}

.toc-list a {
    color: #555;
    text-decoration: none;
    transition: color 0.3s;
    display: block;
}

.toc-list a:hover {
    color: #667eea;
    transform: translateX(5px);
}

.poster-wrapper{
    position: relative;
    width: 100%;   
}
.poster-wrapper .image-icon{
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 2px 5px rgba(0,0,0,0.1));
}
.poster-wrapper .image-icon svg{
    width: 100%;
    height: 100%;
}

#slide-0{
    background-size: 100% 100%;
    background-position: center;
    text-align: center;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
    margin-bottom: 0;
}
#slide-0 .subtitle{
    display: inline-block;
    font-weight: bold;    
    /* background: linear-gradient(90deg, #667eea, #764ba2); */
    /* 三色渐变 */
    background: linear-gradient(90deg, #00FFFF, #37FF87, #0070C0);
    /* 文字渐变色 */
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-top: 50px;
}
#slide-0{
    box-shadow: none;
    padding: 20px 0;
}
#slide-1{
    box-shadow: none;
    padding-top: 0;
}
#slide-1 .image-icon{
    margin: 0;
}
#slide-1 .text-container .item {
    display: flex;
    align-items: center;
    padding: 10px 0;
}
#slide-1 .text-container .item span.num {
    color: #37FF87;
    font-size: 22px;
    font-weight: bold;
    margin-right: 20px;
}
#slide-1 .note-text {
    font-size: 18px;
    color: #8b8b8b;
    line-height: 1.6;
    margin-top: 20px;
    text-align: center;
    padding-bottom: 15px;
}
#slide-1 .note-text span {  
    font-weight: bold;
    background: linear-gradient(90deg, #00FFFF, #0070C0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0 auto;    
}
#slide-1 .sub-title-text {
    font-size: 18px;
    font-weight: 600;
    color: #FFF; 
    line-height: 1.4;
    margin-left: 15px;
}
#slide-1 .sub-title-text a{
    color: rgba(255,255,255,0.8);
    text-decoration: none;
}
#slide-2 .body-text{
    text-align: center;
}
.subtitle-text{
    margin-bottom: 20px;
    font-size: 16px;
    color: #FFF;   
    text-align: center;
}
#slide-3 .item{
    display: flex;
}

#slide-3 .col-r{
    margin-left: 15px;
}
#slide-3 .image-icon{
    margin: 0;
}

#slide-4 .image-wrapper{
    text-align: center;
}
#slide-4 .image-wrapper .image-shape{
    margin: 0;
}

#slide-4 .subtitle-text span{
    font-weight: bold;
    background: linear-gradient(90deg, #00FFFF, #E53935);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 20px auto 0;
}
#slide-4 .list-wrapper .item{
    display: flex;
    align-items: center;
    padding: 10px 0;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-4 .list-wrapper .item img{
    margin-right: 15px;
}
#slide-4 .list-wrapper .item .text-shape{
    margin-bottom: 0;
}
#slide-4 .list-wrapper .title-text{   
    margin-bottom: 0;
    text-align: left;
}
#slide-5 .secondtitle-text{
    text-align: center;
}
#slide-5 .secondtitle-text span{
    font-weight: bold;
    background: linear-gradient(90deg, #057E03, #E53935);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 20px auto 0;
}
#slide-5 .image-wrapper{
    text-align: center;
}
#slide-5 .image-wrapper .image-shape{
    margin: 0;
}
#slide-5 .arrowdown-wrapper{
    text-align: center;
}
#slide-5 .challenge-wrapper .item{
    display: flex;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-5 .challenge-wrapper .itemtitle-text{
    font-size: 14px;
    color: #00FFFF;
}
#slide-5 .challenge-wrapper .title-text{
    font-size: 18px;
    color: #FFF;
    font-weight: bold;    
    margin-bottom: 10px;
    text-align: left;
}
#slide-5 .challenge-wrapper p{
    font-size: 14px;
    color: #8b8b8b;  
    margin-bottom: 0;
}
#slide-5 .core-need-wrapper{
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
}
#slide-5 .core-need-wrapper .item{
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}
#slide-6 .wrapper{
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
}
#slide-6 .challenge-wrapper{
    margin-top: 20px;
}
#slide-6 .secondtitle-text{
    text-align: center;
    margin-top: 0;
    margin-bottom: 15px;
}
#slide-6 .secondtitle-text span{
    font-weight: bold;  
    background: linear-gradient(90deg, #00FFFF, #37FF87, #E53935);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;    
}
#slide-6 .secondtitle-text.trend-title span{
    font-weight: bold;  
    background: linear-gradient(90deg, #00FFFF, #37FF87, #0070C0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;    
}
#slide-6 .wrapper .item{
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}
#slide-7 .head-wrapper{
    display: flex;
    align-items: center;
    font-size: 14px;
}
#slide-7 .head-wrapper .title-text{
    font-size: 18px;
    color: #FFF;
    font-weight: bold;    
    margin-bottom: 0;
    text-align: left;
}
#slide-7 .item-wrapper{ 
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(2, minmax(100px, 1fr));    
    gap: 15px;
}
#slide-7 .item-wrapper .item{
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    text-align: center;
}

#slide-9 .item-wrapper .item{
    display: flex;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-10 .item-wrapper .item{
    display: flex;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-11 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(2, minmax(100px, 1fr));    
    gap: 10px;
}
#slide-11 .item-wrapper .image-icon{
    margin: 0 0 5px;
}
#slide-11 .item-wrapper .item{
    display: flex;
    align-items: center;
    flex-direction: column;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;  
}

#slide-12 .item-wrapper .item{
    display: flex;
    align-items: center;
    /* border: 1px solid rgba(255,255,255,0.2); */
    background-color: rgba(255,255,255,0.05);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-12 .wrapper .image-shape{
    margin: 0;
    clear: both;    
}
#slide-12 .wrapper .ptt{
    position: relative;
    z-index: 2;
} 
#slide-12 .wrapper .ptt::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80%;
    /* background: linear-gradient(90deg, #00FFFF, #E53935); */
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    z-index: -1;
    border-radius: 8px;
}
#slide-12 .item-wrapper{
    margin-top: 15px;
}
#slide-12 .item-wrapper .image-icon{
    margin: 0 10px 0 0;
}
#slide-13 .image-wrapper .image-shape{
    margin: 0;
    width: 100%;
}
#slide-13 .item-wrapper .item{
    display: flex;
    flex-direction: column;  
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    margin-bottom: 15px;
}
#slide-13 .item-wrapper .item .title{
    width: 100%;
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: flex-start;    
}
#slide-13 .item-wrapper .item .title .small-text{
    font-weight: bold;
    color: #FFF;
    margin-left: 10px;
}
#slide-14 .image-wrapper{
    text-align: center;
}
#slide-14 .image-wrapper .image-shape{
    margin: 0; 
}
#slide-14 .r1-wrapper{
    display: flex;    
}

#slide-14 .secondtitle-text{
    margin: 0;    
}
#slide-14 .r1-sub-wrapper{
    margin-bottom: 10px;
}
#slide-14 .r1-sub-wrapper .item{
    display: flex;
    align-items: start;  
}
#slide-14 .r1-sub-wrapper .item .image-icon{
    margin: 0;    
    width: 16px;
    height: 16px;
    margin-top: 2px;
}
#slide-14 .r1-sub-wrapper .item .small-text{
    margin-left: 5px;
    font-size: 12px;
}
#slide-14 .r2-wrapper{
    display: flex;
    margin-top: 15px;
    background: linear-gradient(90deg, #057E03, #E53935);    
    padding: 10px;
    border-radius: 8px;
    align-items: center;
}
#slide-14 .r2-wrapper .small-text{ 
    color: #FFF;
    margin-left: 10px;
}
#slide-15 .image-wrapper{
    text-align: center;
}
#slide-15 .image-wrapper .image-shape{
    margin: 0;    
}

#slide-15 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(2, minmax(100px, 1fr));    
    gap: 10px;
    margin-bottom: 20px;
}
#slide-15 .item-wrapper .item{
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    text-align: left;
}
#slide-15 .item-wrapper .item .title{
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: flex-start;    
    font-size: 16px; 
}
#slide-15 .item-wrapper .item .title .image-icon{
    width: 24px;
    height: 24px;
    margin: 0 5px 0 0;
}
#slide-16 .image-wrapper{
    text-align: center;
}
#slide-16 .image-wrapper .image-shape{
    margin: 0;    
}
#slide-16 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(1, minmax(100px, 1fr));    
    gap: 10px;
    margin-bottom: 20px;
}
#slide-16 .item-wrapper .item{
    display: flex;    
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 15px;
    text-align: left;
}

#slide-16 .item-wrapper .item .image-icon{
    margin: 0 5px 0 0;
}
#slide-17 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(3, minmax(100px, 1fr));    
    gap: 10px;
    margin-bottom: 20px;  
}
#slide-17 .item-wrapper .item{
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px 5px;
    align-items: center;
    text-align: center;
}
#slide-17 .item-wrapper .item .image-icon{
    margin: 10px 0;
}

#slide-18 .secondtitle-text{
    margin: 0;
}
#slide-18 .item-wrapper .item .title{
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: flex-start;    
    font-size: 16px;
    color: #FFF;
    margin-bottom: 15px;
}
#slide-18 .item-wrapper .item .title .image-icon{
    margin: 0 5px 0 0;
}
#slide-18 .item-wrapper .item .title .subtitle-text{
    font-weight: bold;
    color: #FFF;
    margin-bottom: 0;
}

#slide-18 .foot{
    display: flex;   
    flex-direction: row;
    justify-content: space-evenly;
}
#slide-18 .foot .small-text{
    font-size: 12px;
    color: #FFF; 
}

#slide-19 .image-wrapper{
    text-align: center;
}
#slide-19 .image-wrapper .image-shape{
    margin: 0;    
}
#slide-19 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(2, minmax(100px, 1fr));    
    gap: 10px;
    margin-bottom: 10px;
}
#slide-19 .item-wrapper .item{
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px;
}

#slide-20 .image-wrapper{
    text-align: center;
}
#slide-20 .image-wrapper .image-shape{
    margin: 0;    
}
#slide-20 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(2, minmax(100px, 1fr));    
    gap: 10px;
    margin-bottom: 10px;
}
#slide-20 .item-wrapper .item{
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px;
}
#slide-21 .item-wrapper{
    display: flex;    
    flex-direction: column;
}
#slide-21 .item-wrapper .item{
    display: flex;
    flex-direction: row;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px;
}
#slide-21 .item-wrapper .item:not(:last-child){
    margin-bottom: 10px;
}

#slide-23 .image-wrapper{
    text-align: center;
}
#slide-23 .image-wrapper .image-shape{
    margin: 0;
}
#slide-23 .item-wrapper{
    display: grid;
    /* 每行2列，列宽自动适应 */
    grid-template-columns: repeat(1, minmax(100px, 1fr));
    gap: 10px;
    margin-bottom: 10px;
}
#slide-23 .item-wrapper .item{
    display: flex;
    flex-direction: row;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 10px;
}
#slide-23 .item-wrapper .item .image-icon{
    margin: 0 5px 0 0;
}
#slide-23 .foot{
    display: flex;   
    flex-direction: row;    
    align-items: center;
    justify-content: center;   
    color: #FFF; 
}
#slide-23 .foot .image-icon{
    margin-right: 10px;
}
.profile-text p{
    margin-top: 15px;  
}
.copyright-text{
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}
.contact-wrapper{
    text-align: center;
    background-color: #0671ba;
    margin-bottom: 15px;
}
.contact-wrapper .image-shape{
    border-radius: 0;
    box-shadow: none;    
}
.footer{
    text-align: center;
    margin-top: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        
    }
    .slide-section {
        padding: 30px 15px;
    }
    .title-text {
        font-size: 22px;
    }
    .subtitle-text {
        font-size: 18px;
    }
    .body-text {
        font-size: 14px;
    }
    .nav-content {
        flex-direction: column;
        text-align: center;
    }
    .image-icon{
        width: 24px;
        height: 24px;
    }
}

/* 打印样式 */
@media print {
    .navbar, .back-to-top, .progress-container, .slide-link {
        display: none;
    }
    .slide-section {
        page-break-after: always;
        break-inside: avoid;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-section {
    animation: fadeInUp 0.6s ease-out;
}